Skeletal System Review Part 3

Which of these is a function of bone?

• internal support and protection

• provide attachment for muscles

• mineral storage

• blood cell formation

• all of these ar functions of bone

Bone matrix contains which of the two answers below?

• collagen.

• calcium and phosphate

• proteoglycan.

• chondrocytes.

A break in the shaft of a bone is a break in the

• epiphysis.

• perichondrium.

• diaphysis.

• articular cartilage

Which of these connective tissue

membranes cover the surface of

mature bones?

• perichondrium

• periosteum

• hyaline cartilage

• endosteum

Primary ossification centers of a long bone are found in the

• diaphysis

• epiphysis

• perichondrium

• periosteum

• articular cartilage

As a long bone increases in diameter, the medullary cavity

• increases in size.

• decreases in size.

• does not change in size.

During bone growth at the epiphyseal plate, _____ increase in number, hypertrophy, and die.

• osteocytes

• osteoblasts

• osteoclasts

• chondrocytes

The prime function of osteoclasts is to

• prevent osteoblasts from forming.

• break down bone.

• produce calcium salts and collagen fibers.

• change spongy bone to cartilage.

In the healing of bone fractures

• a blood clot forms around the break.

• a callus is formed.

• cancellous/spongy bone is formed in the callus.

• the callus may eventually disappear.

• all of the above

In compact bone, the osteocytes are connected to each other by tiny cell processes extending through tiny canals called

• lamellae

• lacunae

• central canals

• canaliculi